19387502070 has 32 divisors (see below), whose sum is σ = 47318653440. Its totient is φ = 5082372960.

The previous prime is 19387502053. The next prime is 19387502077. The reversal of 19387502070 is 7020578391.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19387502077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5474926 + ... + 5478465.

It is an arithmetic number, because the mean of its divisors is an integer number (1478707920).

Almost surely, 2^19387502070 is an apocalyptic number.

19387502070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19387502070 is an abundant number, since it is smaller than the sum of its proper divisors (27931151370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19387502070 is a wasteful number, since it uses less digits than its factorization.

19387502070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953460.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 19387502070 in words is "nineteen billion, three hundred eighty-seven million, five hundred two thousand, seventy".